Nature of quasiparticle excitations in the fractional quantum Hall effect

Details Nature of quasiparticle excitations in the fractional quantum Hall effect Nature of quasiparticle excitations in the fractional quantum Hall effect

2003-10-29

arxiv.org/abs/cond-mat/0310708v1

Phys. Rev. B 68, 165346 (2003)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 5 figures

Scientific paper

10.1103/PhysRevB.68.165346

We investigate the 1/3 fractional quantum Hall state with one and two quasiparticle excitations. It is shown that the quasiparticle excitations are best described as excited composite fermions occupying higher composite-fermion quasi-Landau levels. In particular, the composite-fermion wave function for a single quasiparticle has 15% lower energy than the trial wave function suggested by Laughlin, and for two quasiparticles, the composite fermion theory also gives new qualitative structures.

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